Move some core/platform/graphics/mac files to geometry

Source/platform/geometry/cg/IntRectCG.cpp

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
 IntRect enclosingIntRect(const CGRect& rect)
 {
     int l = static_cast<int>(floorf(rect.origin.x));
     int t = static_cast<int>(floorf(rect.origin.y));
     int r = static_cast<int>(ceilf(CGRectGetMaxX(rect)));
     int b = static_cast<int>(ceilf(CGRectGetMaxY(rect)));
     return IntRect(l, t, r - l, b - t);
 }
 
 }